ABB

ABB DSSR 122 DSSR1229K 4899 0001-NK Advant Master DC/DC Power Supply Unit

SKU DSSR 122

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: ABB

  • Product No.: DSSR 122

  • Country of origin:Sweden

  • Product Type: DC/DC Power Supply Unit

  • Barcode: 8537101190

  • Payment: T/T, Western Union

  • Weight: 2350g

  • Dimensions: 23.9 x 16.2 x 7.2 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The ABB DSSR 122 (ordering number 4899 0001-NK / DSSR1229K) is an industrial DC/DC power regulator module designed for the ABB Advant OCS and Advant Master process control systems. It operates as a dedicated subrack power supply that converts an unregulated or battery-backed 24 VDC bus into a regulated 5 VDC logic supply delivering up to 40 A of continuous current.

Engineered for installation in Advant Controller subracks—including AC410, AC450, and DSRF 197 subrack chassis—the DSSR 122 provides low-noise logic power to central processing units, bus communication modules, and internal subrack backplanes. The unit accommodates an input operating window of 18 to 30 VDC with a maximum input power rating of 280 W, ensuring uninterrupted power conversion during plant DC distribution fluctuations.

Features

  • Wide DC input voltage operating range of 18 to 30 VDC (24 VDC nominal)
  • Regulated 5 VDC output supporting continuous load currents from 1 A to 40 A (200 W nominal output)
  • 280 W maximum rated input power capacity
  • Field-replaceable internal 20 A protection fuse (ABB part number 5672827-20)
  • Subrack-slide form factor designed for direct backplane mating in Advant Master chassis
  • Operating ambient temperature range of -5 degC to +55 degC

Applications

  • Direct backplane 5 VDC logic power supply for ABB Advant Controller AC410 and AC450 racks
  • Subrack power regulation in ABB DSRF 197K01 I/O chassis assemblies
  • Internal DC power distribution for Advant Master communication gateway assemblies (such as AC410A14)

Technical Specifications

Parameter Specification
Manufacturer ABB
Model Designation DSSR 122 (DSSR122 / DSSR1229K)
Product ID / Article Number 4899 0001-NK (Exchange Number: EXC48990001-NK)
Module Type DC/DC Regulator Power Supply Unit
Control System Architecture ABB Advant OCS / Advant Master
Nominal Input Voltage 24 VDC
Input Voltage Range 18 to 30 VDC
Input Power Capacity 280 W
Output Voltage 5 VDC (regulated)
Output Current Rating 40 A
Load Range 1 to 40 A
Internal Spare Fuse 20 A (P/N 5672827-20)
Operating Temperature -5 degC to +55 degC
Dimensions (H x W x D) 72.0 x 162.0 x 238.5 mm
Net Weight 2.35 kg
Country of Origin Sweden

FAQ

What is the primary function of the ABB DSSR 122?

The ABB DSSR 122 (4899 0001-NK) is a rack-mounted DC/DC regulator module that converts an incoming 24 VDC industrial supply into a regulated 5 VDC output at up to 40 A to power controller boards and subrack backplane logic.

Which ABB control systems use the DSSR 122 power supply module?

The DSSR 122 is used within ABB Advant OCS with Master software, specifically supporting Advant Controller 410 (AC410), Advant Controller 450 (AC450), and DSRF 197 subrack assemblies.

What are the input and output voltage ratings of the DSSR 122?

The module accepts an input range of 18 to 30 VDC (24 VDC nominal) with an input capacity of 280 W, and provides a regulated 5 VDC output across an active load range of 1 to 40 A.

What replacement fuse is specified for the ABB DSSR 122?

The unit utilizes an internal 20 A spare fuse under ABB part number 5672827-20.

View all FAQs →

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  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Sweden

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